Twenty-six randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency 6 2 5 4 4 2 (a) Find the sample mean x. (Enter your answer to two decimal places.) (b) Find the approximate sample standard deviation, s. (Round your answer to two decimal places.) S =

Q: w + 4 w + 10 6. 8.

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Q: 2 +,

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Q: -2- 4- 3 10

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Q: +2 1/2 215

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A: The given equations are system of linear equations in variables x and y. We solve these by…

Q: 2. -ў — 2у %3D 6

A: answer is in next step

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A: (a12+b12)(2a12-3b12)=2a12a12+2a12b12-3a12b12-3b12b12=2a+2a12b12-3a12b12-3b=2a-a12b12-3b

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Q: -2 -4 and D = 4 8

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A: The given fractions are,

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A: